@misc{indiciae42b5ee4c54ca,
  title = {Boron analysis by electron microprobe using MoB4C layered synthetic crystals},
  author = {J. J. McGee and J. F. Slack and C.R. Herrington},
  year = {1991},
  url = {https://pubs.usgs.gov/publication/70016925},
  note = {Source identifier: 70016925}
}